Why narcissus droop their heads?

It is the first time I planted narcissus, there come three flowers this weekend, but why do they bend their  heads down? Why not look up to the sun like other flowers? Or at least facing the front, is it because the cold air for the past two days? Or sick?
 

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Why droop your head? Just now I suddenly realized why , it was not of any illness

The reason being... ... from the Greek mythology: Narcissus,
 

In Greek mythology, Narcissus (/nɑ?r?s?s?s/; Ancient Greek: Ν?ρκισσος Nárkissos) was a hunter from Thespiae in Boeotia (alternatively Mimas or modern day Karaburun, Izmir) who was known for his beauty. According to Tzetzes, he rejected all romantic advances, eventually falling in love with his own reflection in a pool of water, staring at it for the remainder of his life.  After he died, in his place sprouted a flower bearing his name. One day Narcissus was walking in the woods when Echo, an Oread (mountain nymph) saw him, fell deeply in love, and followed him. Narcissus sensed he was being followed and shouted "Who's there?". Echo repeated "Who's there?" She eventually revealed her identity and attempted to embrace him. He stepped away and told her to leave him alone. She was heartbroken and spent the rest of her life in lonely glens until nothing but an echo sound remained of her.
The word narcissism comes from  narcissus.
 

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It turns out that you are not sick, you are looking at your own reflection and pity yourself , ah? but there is no reflection on the black earth.  Should I plant you in the water?

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For plant reproductive organ lovers like me, I had to take a difficult posture to have a frontal pose of a narcissus

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